Am Montag, 2. September 2002 00:09 schrieb Thunder from the hill:
> Hi,
>
> On Mon, 2 Sep 2002, Oliver Neukum wrote:
> > > > No; spin_lock_irqsave/spin_unlock_irqrestore and
> > > > spin_lock/spin_unlock have to be used in matching pairs.
> > >
> > > If it was his least problem! He'll run straight into a "schedule
> > > w/IRQs disabled" bug.
> >
> > OK, how do I drop an irqsave spinlock if I don't have flags?
>
> IMHO you might even ask "How do I start a car when I don't have the
> keys?"
Break off the lock, touch some cables ... ;-)
> You might find a way, but it's not desired. Are you sure you want to
> reschedule in an interrupt handler? If it's none, are you sure you want
> to disable interrupts?
I am not in an interrupt handler. It's not my fault that the scsi layer
calls queuecommand with a spinlock held. But I need to sleep,
I have to get rid of that spinlock's effects. If possible I even want
interrupts to be enabled.
Regards
Oliver
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sat Sep 07 2002 - 22:00:14 EST